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Physical Symptoms as Observable Indicators of Psychological

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Isidro Landa

on 12 April 2014

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Transcript of Physical Symptoms as Observable Indicators of Psychological

Physical Symptoms as Observable Indicators of Psychological Stress
Isidro Landa, Jr. & James Amirkhan, Ph.D.
Background
Background
Shoss & Shoss (2012)
1) Chronic
2) Acute
Janssens et al. (2010)
1) Overtiredness, dizziness, and musculoskeletal pain
2) Headache and gastrointestinal
The Current Study
1) To examine whether physical symptoms group into meaningful clusters
2) To identify which physical symptoms are consistently reported by stressed individuals
Method: Participants
(N=408)
Method: Measures
Stress
- Stress Overload Scale (SOS)
Amirkhan (2012)
30-item frequency scale
Personality Vulnerability and Event Load
Excellent internal consistency (alpha <.96)
Test-retest reliability (
r
= .79)
Criterion validity (
b
= .53,
t
= 8.41,
p
< .01)
Physical Symptoms
- Symptom Checklist
Amirkhan, Chun, Cho (2012)
35-item frequency scale
Wholly physical symptoms
Good internal consistency (alpha = .92)
Test retest reliability (r = .80)
Method: Procedure
Results: Demographic Breakdown
Limitations
1) Measurement of stress and health
Young
2) Unrepresentative samples
Limited list of physical symptoms
Subjective stress not measured
Female
Results
Bivariate Correlations
Exploratory Factor Analysis
Stepwise Regression
Mouth/ Cold sores
Itching/ Rash
Physical
Symptom
Factors
Body Aches
Joint pain
Muscular/Body aches
Back/Shoulder pain
Swollen feet/hands

Gastrointestinal Disturbances
Nausea
Vomiting
Stomach pains
Light-headed/ Dizzy
Change in appetite
Respiratory Problems
Runny/ Stuffy nose
Sneezing
Sore throat
Coughing/ Wheezing
27.89%
7.98%
5.76%
Discussion
1) Body Aches
2) Gastrointestinal Disturbances
3) Respiratory Problems
Strengths
35-item Symptom Checklist (vs. 16-item or 6-item)
Representative sample
Limitations & Future Directions
Cross-sectional design
Implications
Emergency settings
Testing the level of covariance
Criterion: SOS scores
PV: Symptom clusters were stepped in one by one
Thank you!
Conducted in demographically diverse communities
Employed measures of demonstrated accuracy
Stress and rheumatoid arthritis

Stress and digestive symptoms
No health screening
Luft et al., (2012)
Method: Measures
Body Aches
Gastrointestinal Disturbances
Step 4:
Level of Income
Step 1:
Step 2:
Step 3:
Respiratory Problems
SOS Scores
Level of Income
Step 1:
Step 2:
Step 3:
Gastrointestinal Disturbances
Respiratory Problems
Body Aches
Step 4:
SOS Scores
SOS Scores
Model 1
Model 2
Step 1:
Step 2:
Step 3:
Gastrointestinal Disturbances
Respiratory Problems
Body Aches
Model 3
R2=.021, p = .018
R2=.128, p<.001
R2=.002, p=.422
Acknowledgments
Chi-Ah Chun
James H. Amirkhan
Vasanthy Narayanaswami
NIH GM008074
Regression models across gender
Full transcript